Planning application
25/06210/CLEUD
64 Cambridge Street London SW1V 4QQ
Proposal
Lawful Development Certificate (LDC) for the continued use of the upper floors as a ground floor flat and a first and second floor maisonette.
As published by the council, reference 25/06210/CLEUD
Timeline
Dates from the published record
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2 Sep 2025
Received by Westminster
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10 Sep 2025
Validated
Checked as complete and ready for consideration.
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21 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About lawful development applications
How this application type works
A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.
Nearby applications
Within 500 metres
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26/03949/FULL Awaiting decision
65 Cambridge Street London SW1V 4PS
Erection of a single storey glazed infill extension at rear lower ground level; installation of air conditioning unit in enclosure within rear yard; replacement of rear ground floor window with doors and Juliet balcony; and removal of window in rear side elevation and making good of brickwork.
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26/04277/TCA Awaiting decision
54 Alderney Street London SW1V 4EX
We planted an olive tree in the bed on the patio behind our house in 2004. It has apparently found a water source and grown much larger than originally expected. We have pruned it regularly, but it has continued to grow and is now disproportionately large for a relatively small patio area. Unfortunately, it has attracted a fungus, which produces substantial amounts of white residue and sticky deposits, which render the use of our outside space effectively impossible. We have taken advice from a tree surgeon, who has told us that without knowing the source of the infection (probably another fruit tree) it will not be feasible to eliminate this. The tree is also now too big to treat. In the light of this, we are seeking permission to cut the tree down.
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26/01193/FULL Awaiting decision
Basement 41 St George's Drive London SW1V 4DG
Erection of side infill extension at rear lower-ground level and lowering of the front vaults. (Linked to 26/01194/LBC)
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26/01194/LBC Awaiting decision
Basement 41 St George's Drive London SW1V 4DG
Erection of side infill extension at rear lower-ground level and lowering of the front vaults and internal alterations. (Linked to 26/01193/FULL)
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25/06051/FULL Granted
73 Alderney Street London SW1V 4HH
Replacement of first floor railings with traditional concrete balustrade, replacement of front door and existing porch glazing, and replacement of front door at 73a.
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26/03899/FULL Awaiting decision
77 Winchester Street London SW1V 4NU
Installation of a small roof-mounted Automatic Opening Vent (AOV) and two air source heat pump condenser units on the existing flat roof.
Other lawful development applications
In Westminster
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26/04958/CLEUD Awaiting decision
1 Sussex Square London W2 2SJ
Use of a building as mixed use as C3 (single residential dwelling) and C1 (short-stay accommodation)
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26/04971/CLOPUD Awaiting decision
Flat 23 192 Emery Hill Street London SW1P 1PN
Replacement of the existing single-glazed moving window sashes, casement panels, and balcony door leaves with slimline double-glazed timber units. The existing outer timber frames fixed into the building will be retained and will not be removed or altered. The replacement units will match the existing windows in material, design, glazing bar pattern, opening method, dimensions, and external appearance. No alterations are proposed to the building structure, external walls, openings, or window frame sizes. No new access, alterations to existing access, new streets, hardstandings, means of enclosure, or drainage works are proposed. The precise location and details of the replacement windows are shown on the accompanying drawings.
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26/04832/CLEUD Awaiting decision
Basement Flat 117 Kilburn Park Road London NW6 5LB
Use or Development in respect of the detached single-storey outbuilding within the rear garden of the applicants property.
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26/04856/CLOPUD Awaiting decision
Flat 15 192 Emery Hill Street London SW1P 1PN
Replacement of the existing single-glazed moving sashes, casement panels, and balcony door leafs with slimline double glazed timber units within the fully retained existing external timber frames.
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26/04632/CLOPUD Awaiting decision
165 Oliphant Street London W10 4EA
Installation of solar panels to generate clean, renewable energy from sunlight and reduce reliance on grid electricity and fossil fuels.